PHENYL DIRECTING GROUPS IN THE DEMETHOXYLATION ROUTE TO TRICARBONYL(ETA-5-CYCLOHEXADIENYL)IRON(1+) COMPLEXES

被引：5

作者：

OWEN, DA

STEPHENSON, GR

FINCH, H

SWANSON, S

机构：

[1] UNIV E ANGLIA,SCH CHEM SCI,NORWICH NR4 7TJ,NORFOLK,ENGLAND

[2] GLAXO GRP RES LTD,WARE SG12 0DJ,HERTS,ENGLAND

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1990年 / 395卷 / 01期

关键词：

D O I：

10.1016/0022-328X(90)85268-4

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Acid catalysed demethoxylation of tricarbonyl(η4-2-methoxy-6-phenyl-1,3- cyclohexadiene)iron(0) leads to the exclusive formation of a 3-phenyl salt, rather than the product of minimum rearrangement, a 1-phenyl salt. With an additional 2-methyl substituent present, the competing directing influence is overcome by the phenyl group. The importance of the phenyl substituent in promoting regioselectivity is demonstrated by the demethoxylation of a 2,5-dimethyl-3-methoxy substituted complex, which led to a mixture of products. © 1990.

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页码：C5 / C8

页数：4

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